@article{lrr-2003-1,
  title    = {Relativity in the Global Positioning System},
  author   = {Neil Ashby},
  journal  = {Living Reviews in Relativity},
  year     = {2003},
  number   = {1},
  volume   = {6},
  keywords = {},
  doi      = {10.12942/lrr-2003-1},
  url      = {http://www.livingreviews.org/lrr-2003-1}
}
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